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Line 1: [[File:Flash-EEPROM.jpg\|thumb\|150px\|Flash-[[EEPROM]] in a Router - real MTD]] [[File:Metal usb flash driver.jpg\|thumb\|150px\|Not an MTD but a [[block device]]]] '''Memory technology devices''' (MTD) are a new type of [[device file system#Devices\|device file]] in [[Linux]] for interacting with [[flash memory]], similar to [[Flash Translation Layer]]. The MTD subsystem was created to provide an [[abstraction layer]] between the hardware-specific device drivers and higher-level applications. Although character and block device files already existed, their semantics don't map well to the way that flash memory devices operate. [[USB stick]]s, [[MultiMediaCard\|MMC]]s, [[Secure Digital\|SD]]s, [[CompactFlash]]es and other popular removable devices should not be confused with MTDs. Although they are also called "flash", they are not Memory Technology Devices.<ref>http://www.linux-mtd.infradead.org/faq/general.html#L_ext2_mtd</ref>

Memory Technology Device: Difference between revisions